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https://issues.apache.org/jira/browse/HIVE-14340?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chao Sun updated HIVE-14340:
----------------------------
Attachment: HIVE-14340.1.patch
Attaching new patch. This changes {{hive.query.hooks}} to
{{hive.query.lifetime.hooks}}. Also, now the hook activates at 4 places:
# before query compilation
# after query compilation
# before query execution
# after query execution
> Add a new hook triggers before query compilation and after query execution
> --------------------------------------------------------------------------
>
> Key: HIVE-14340
> URL: https://issues.apache.org/jira/browse/HIVE-14340
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Affects Versions: 2.2.0
> Reporter: Chao Sun
> Assignee: Chao Sun
> Attachments: HIVE-14340.0.patch, HIVE-14340.1.patch
>
>
> In some cases we may need to have a hook that activates before a query
> compilation and after its execution. For instance, dynamically generate a UDF
> specifically for the running query and clean up the resource after the query
> is done. The current hooks only covers pre & post semantic analysis, pre &
> post query execution, which doesn't fit the requirement.
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